Improvement in steam-boilers



STEAM-BOILER.

Patented" Dec. 21, l1875.

. Im: mtu n fmf ma wm y WWWMET@ UNITED STATES PATENT QEEIGEc JOSEPHSHAOKLETON, OF BUFFALO, NEW YORK.

IMPROVEMENT IN STEAM-BOILERS.

Specification forming part of Letters Patent No. 171,436, dated December21, 187'5; application filed october 29, 1875.

To all whom t may concern Be it known that I, JOSEPH SHAcKLE'roN, ofBuffalo, in the county of Erie and State of NewYork, have invented a newand useful Improvement in Steam -Boilers, which improvement is fully setforth in the following specitication, reference being had to theaccompanying drawing, in which- Figure l represents a longitudinalvertical section. Fig. 2 is a transverse section.

Similar letters indicate corresponding parts.

This invention relates to an improvement in that class ot' steam-boilersin Vwhich a series of U-shaped pipes are secured with their open ends ina common uptake, said pipes extending in a horizontal direction over atire-grate, so that when they are filled with water and exposed to theaction ot' the tire, a rapid and abundant generation ot' steam iseffected.

My present improvement consists in combining an l' -shaped partition orscreen with the uptake, and with the U-shaped water-pipes extending fromthe same, in such a manner that a complete circulation ot' water throughthe U-shaped pipes is effected, and the escape of solid Water with thesteam is prevented.

In the drawing, the letter A designates the uptake ot' my steam-boiler,from which extend a series of U-shaped pipes, B, which are ot'Vgradually-increasing length, so that each suc-- ceeding one willentirely embrace those preceding. Each of these U-shaped pipes is`secured in the uptake with its open ends, and all said pipes extendover the tire-grate O, which is situated in the lower part of thefurnace-wall Which surrounds my boiler. In' the interior of the uptakeis secured an |'shaped partition or screen, D, which separates the lowerapertures a b c of the U-shaped pipes from their upper apertures a b' c.

It' the boiler is filled with water, and a lire is raised on the grateC, the water contained in the lower branches of the U-shaped pipes isdriven out above, and the water thus displaced is immediately replacedby water from the uptake, and by these means a complete disengages fromthe water, and which accummulatcs in the upper portion of the uptake, isfree from solid particles of water.

It is obvious that the num ber ot' U-shaped pipes emanating from theuptake A can be increased to any desired extent.

In the example represented by the drawing I have shown four uptakes, A,which are connected at the bottom to a common horizontal drum, D, and atthe top to a common steamdome, E.

In each ot' the uptakes are secured' three sets of U-shaped pipes, B,which may be staggered, as indicated in Fig. 2. By this arrangement aboiler ot any desired capacity can be constructed, and steam can begenerated with rapidity, safety, and economy.

The U-shaped pipes B are secured in the uptake, each with its open endsat different levels, one ofthe said ends ot' each U-shaped pipe beingsituated above the other end, so that by the difference ot' thetemperature in the two horizontal branches ot' each pipe combined withthe action ot" the diaphragm, a constant circulation ot' the Waterthrough said U-shaped pipes is insured.

What I 'claim as new, and desire to secure by Letters Patent, is'- Thecombination ofa series of return-tubes, having ascending branches, withan uptake and a defiector, D, the upper ends ot' all the saidreturn-tubes being situated above, and their lower ends below, thedeiector, as and for the object specified.

In testimony that I claim the foregoing I have hereunto set my hand andseal this 18th day of September, 1875.

JOSEPH SHAOKLETON. [Ll s] Witnesses:

EDWD. C. HAwKs, T. H. HUBBELL.

